Weifang Weitel Pipe Industry Co., Ltd. Long-distance (long-distance, long-distance) centralized liquid supply mine with double-resistant plastic-coated steel pipe Performance characteristics: The outer-coated plastic-lined stainless steel bi-metal seamless steel pipe has excellent pressure bearing performance and corrosion resistance performance. Excellent insulation and pressure resistance, small thermal expansion coefficient, no shrinkage deformation, smooth surface, small friction coefficient, and it is not suitable for microorganisms to breed. The pipeline connection is simple, the installation is convenient, it is easy to master, and the maintenance is convenient. The plastic-coated mining steel pipe is based on the steel pipe. The outer wall is coated with a high-adhesion, impact-resistant, anti-corrosion and pressure-resistant thermosetting powder coating, and the inner wall is lined with high-adhesion, anti-corrosion stainless steel. Using sandblasting chemical double pre-treatment, preheating, inner coating, outer coating, curing, post-treatment and other processes, the outer-coated plastic-lined stainless steel bimetal composite steel pipe for mining is an upgraded version of traditional steel-plastic pipe. Cost-effective product. The product has passed the professional certification of the National Safety Mark Certification Center for Mining Products. Through the anti-corrosion coating of the steel pipe, the corrosion and scaling problems of ordinary steel pipes in the process of burying and conveying water are solved. It eliminates the phenomenon of pipeline blockage and spray blockage, and improves the service life of the pipeline. The service life of the plastic-coated steel pipe is more than 50 years.